<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Html file with inline svg. </title>
    <style>
        svg {
            width: 300px;
            height: 300px;
            border: 1px solid green;
        }
    </style>
</head>

<body>
    <svg>
        <rect x="20" y="20" width="100" height="280" fill="grey" stroke="black" stroke-width="3"></rect>
        <circle cx="70" cy="70" r="40" fill="red" stroke="black" stroke-width="3"></circle>
    </svg>
</body>

</html>